algebra
posted by Helen .
I need help with these problem please.
X^2+6=15
(x+4)^2=6
can some one help me please.

x^2 + 6 = 15
x^2 = 9
x = +3 or x=3
x+4 = sqrt 6 or sqrt 6
x = 4 + sqrt 6
or
x = 4  sqrt 6
Respond to this Question
Similar Questions

algebra 1b
i need help!!!!!!!!!!!! Please post your problem and your attempts to solve it. Then we'll be glad to help you. what's the problem? 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me 
algebra
can some one please help figure this problem out Determine whether each expression is a polynomial.If it is a polynomial, state the degree of the polynomial. 5x^3+2xy^4+6xy can someone please help me 
ALGEBRA
I NEED help on the following problem can some one help me please and thanks 5xy+z= 8 2x+2y3z= 28 x3y+2z= 15 
algebra
y^24y+3/y^2*4y+12/y^22y+1 2y(2y+3)/ I need some help with this problem please I can not seem to work it right. 
algebra
3x^25=16 solving equation I see no one is answer ansy problem could some please I need this problem tonight. 
algebra
I do not how to do this problem could some one help me please. x+1/x+2x^2+1/x^2x6 
math help
Thank you for helping me with the last problem Reiny and Bosnian. However, I have one more problem that I need help with please and I have no idea how work the problem. I used an on line calculator to get the answer. It didn't give … 
Algebra
Please I need some help for this problem below please show the full solution thanks:Two angles of a triangle have the same measure and the third one is 51 degrees greater than the measure of each of the other two. Find the measure …